Retailers running feed-based Demand Gen can now apply discount tags from promotion assets directly on YouTube Shorts and in-stream ads. This update allows for easy display of sale offers in video formats without requiring new creative materials.
The recent change spotted on the Google help page adds support for promotion assets in Demand Gen campaigns using a Google Merchant Center product feed. Specifically, it enables advertisers to feature discount tags in YouTube Shorts and YouTube In-stream formats, enhancing visibility for promotional offers.

Promotion assets on these platforms are limited to Demand Gen campaigns with product feeds. The addition appears as two new FAQs on the help page, highlighting the ad formats and eligibility criteria.
Read the official help page here: About Demand Gen campaigns.
This update was spotted by Hana Kobzová.